B3859

B3859 Ford engine fault code diagnosis, code meaning,symptoms and how to fix it.

B3859 Diagnosis

The output circuits that are powered by VBAT3 will all be inoperative. Other fault codes may be present, but troubleshoot for this first. The fuse in the main PDM powering this circuit may be open.Determine if the extra switch is not required for the vehicle or if the switch has been installed but the necessary reference parameter has not been programmed into the BHM.

The BHM measures the current on this circuit when the starter output is commanded ON. This fault indicates the magnetic switch or the wiring between the BHM and the magnetic switch is open circuit.

Ford B3859 Fault Code Meaning :

Ford B3859 Symptoms :

Ford B3859 Reasons :

How To Fix Ford B3859 Trouble Code ?

Which Ford cars have the code B3859?

  • B3859 Ford Aerostar
  • B3859 Ford Bronco
  • B3859 Ford C-Max
  • B3859 Ford C-Max Energi
  • B3859 Ford C-Max Hybrid
  • B3859 Ford Contour
  • B3859 Ford Crown Victoria
  • B3859 Ford EcoSport
  • B3859 Ford Econoline
  • B3859 Ford Edge
  • B3859 Ford Escape
  • B3859 Ford Escape Hybrid
  • B3859 Ford Escort
  • B3859 Ford Everest
  • B3859 Ford Excursion
  • B3859 Ford Expedition
  • B3859 Ford Explorer
  • B3859 Ford Explorer Sport Trac
  • B3859 Ford F-150
  • B3859 Ford F-250
  • B3859 Ford F-350
  • B3859 Ford Fiesta
  • B3859 Ford Flex
  • B3859 Ford Focus
  • B3859 Ford Focus Electric
  • B3859 Ford Freestar
  • B3859 Ford Freestyle
  • B3859 Ford Fusion
  • B3859 Ford Fusion Energi
  • B3859 Ford Fusion Hybrid
  • B3859 Ford Fusion Plug-In Hybrid
  • B3859 Ford GT
  • B3859 Ford Mustang
  • B3859 Ford Mustang Mach-E
  • B3859 Ford Mystique
  • B3859 Ford Probe
  • B3859 Ford Ranger
  • B3859 Ford Taurus
  • B3859 Ford Taurus X
  • B3859 Ford Tempo
  • B3859 Ford Thunderbird
  • B3859 Ford Transit
  • B3859 Ford Transit Connect
  • B3859 Ford Windstar

A code is a fault code and it indicates that something has gone wrong with your car's engine.

It can be caused by many different problems, including a faulty battery, a bad fuel pump, or even a cracked exhaust manifold.

You will need to diagnose the problem before you can fix it. The best way to do this is with an OBD scanner tool.

A scan tool will tell you what needs fixing and how much it will cost in order to fix that particular issue.